T-45C TS, ADV & IUT ENG-23
Other T-45 Systems
B.
Operating characteristics 1.4.19.5.2
Sg 2, fr 6
1.
Functionality
ADR Functions
a.
ADR activates on engine start
ADR FUNCTIONS
b.
Built-in test initiated with power application
* ADR activates when 28 VDC essential
services bus is powered
c.
Capable of recording 6-8 hours of flight data
* Built-in test initiated
with emphasis on last 15 minutes
* Records 6-8 hrs of data
* Either ADR button initiates 10-second
ADR function
d.
Pressing either cockpit ADR event button
initiates a 10-second ADR function. The ADR
saves in memory (until downloaded by
maintenance personnel) both the 5-second
period prior to and the 5-second period after
pressing the ADR event button
2.
Flight incident function records
a.
ADR records incident data continuously so that
the last 15 minutes is always retained. Data
prior to 15 minutes is also retained at a lower
sampling rate
b.
Trend detection can be obtained from recorded
data
c.
Records generated by flight incident functions
are stored in a dedicated section of memory
separate from engine and structural monitoring
d.
Engine monitoring functions provide engine
Sg 2, fr 8
component life usage tracking capability. Four
Fig 4: ADR
categories of monitoring are provided:
Monitoring
(1) Low cycle fatigue calculations
(2) Thermal fatigue and creep calculations
(3) Incidents involving engine parameter
exceedance
(4) Engine vibrations
Original (9-98)
Page 23-7
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